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In: Chemistry

1) Calculate the change in entropy that occurs in the system when 22.0 g of acetone...

1) Calculate the change in entropy that occurs in the system when 22.0 g of acetone (C3H6O) vaporizes from a liquid to a gas at its normal boiling point (56.1 ∘C).

Express your answer using three significant figures.

2) Consider the reaction between nitrogen and oxygen gas to form dinitrogen monoxide:

2N2(g)+O2(g)→2N2O(g),ΔHrxn=+163.2kJ

Calculate the entropy change in the surroundings associated with this reaction occurring at 25∘C.

Express the entropy change to three significant figures and include the appropriate units.

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